Premium 36mm & 39mm Sapphire Watch Case – Perfect Fit for Air‑King, DJ, SK, NH35, NH36, NH34 & Miyota 8215 Movements
Upgrade your timepiece with our meticulously engineered sapphire watch case, designed for watch enthusiasts who demand both durability and elegance. Whether you own a classic Air‑King, a robust DJ model, or any NH35/NH36/NH34/Miyota 8215 movement, this case delivers a flawless, polished finish that enhances any 29mm dial and pairs beautifully with an oyster‑style strap.
Key Highlights
- Crystal‑Clear Sapphire Glass: Scratch‑resistant, high‑definition sapphire crystal ensures pristine visibility and long‑lasting brilliance.
- Versatile Size Options: Available in 36mm and 39mm diameters to accommodate a wide range of dial sizes and styles.
- Precision Compatibility: Engineered for Air‑King, DJ, SK, NH35, NH36, NH34, and Miyota 8215 movements – a perfect match for both vintage and modern watches.
- Polished Oyster‑Style Finish: Offers a sleek, professional look that complements any polished or brushed strap.
- Robust Construction: High‑grade stainless steel housing provides corrosion resistance and superior strength.
- Easy Installation: Pre‑drilled lugs and secure screw‑down crown make replacement quick and hassle‑free.
Design & Build Quality
Our watch case features a seamless blend of form and function. The polished oyster bezel not only adds a touch of sophistication but also protects the dial from everyday impacts. The sapphire crystal is chemically hardened, offering a hardness rating of 9 on the Mohs scale—far surpassing standard mineral glass.
Compatibility & Fit
Designed specifically for the following movements and models:
- Seiko Air‑King
- Seiko DJ series
- Seiko SK series
- NH35, NH36, NH34 automatic movements
- Miyota 8215 automatic movement
Ideal for 29mm dials, the case ensures a snug, secure fit while maintaining a balanced, comfortable wear on the wrist.
Why Choose This Sapphire Watch Case?
- Enhanced Durability: Sapphire crystal resists scratches, cracks, and everyday wear.
- Elevated Aesthetics: Polished oyster finish adds a premium look that matches both casual and formal attire.
- Precision Engineering: Tight tolerances guarantee a perfect match with your existing movement and dial.
- Value for Money: High‑quality materials at an affordable price, extending the life of your beloved watch.
Package Includes
- 1 x 36mm or 39mm Sapphire Watch Case (choose your size)
- Polished Oyster‑Style Strap (compatible with standard 20mm lug width)
- Installation Screws & Instructions
Refresh your watch’s appearance and protect its inner workings with this premium sapphire case. Order now and experience the perfect blend of style, strength, and precision.
Price: Original price was: $ 45.35.$ 24.19Current price is: $ 24.19.

